target/linux/adm5120/files-2.6.28/arch/mips/include/asm/mach-adm5120/adm5120_mpmc.h

   1 /*
   2  *  ADM5120 MPMC (Multiport Memory Controller) register definitions
   3  *
   4  *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify it
   7  *  under the terms of the GNU General Public License version 2 as published
   8  *  by the Free Software Foundation.
   9  *
  10  */
  11
  12 #ifndef _MACH_ADM5120_MPMC_H
  13 #define _MACH_ADM5120_MPMC_H
  14
  15 #define MPMC_READ_REG(r)        __raw_readl( \
  16         (void __iomem *)KSEG1ADDR(ADM5120_MPMC_BASE) + MPMC_REG_ ## r)
  17 #define MPMC_WRITE_REG(r, v)    __raw_writel((v), \
  18         (void __iomem *)KSEG1ADDR(ADM5120_MPMC_BASE) + MPMC_REG_ ## r)
  19
  20 #define MPMC_REG_CTRL   0x0000
  21 #define MPMC_REG_STATUS 0x0004
  22 #define MPMC_REG_CONF   0x0008
  23 #define MPMC_REG_DC     0x0020
  24 #define MPMC_REG_DR     0x0024
  25 #define MPMC_REG_DRP    0x0030
  26
  27 #define MPMC_REG_DC0    0x0100
  28 #define MPMC_REG_DRC0   0x0104
  29 #define MPMC_REG_DC1    0x0120
  30 #define MPMC_REG_DRC1   0x0124
  31 #define MPMC_REG_DC2    0x0140
  32 #define MPMC_REG_DRC2   0x0144
  33 #define MPMC_REG_DC3    0x0160
  34 #define MPMC_REG_DRC3   0x0164
  35 #define MPMC_REG_SC0    0x0200  /* for F_CS1_N */
  36 #define MPMC_REG_SC1    0x0220  /* for F_CS0_N */
  37 #define MPMC_REG_SC2    0x0240
  38 #define MPMC_REG_WEN2   0x0244
  39 #define MPMC_REG_OEN2   0x0248
  40 #define MPMC_REG_RD2    0x024C
  41 #define MPMC_REG_PG2    0x0250
  42 #define MPMC_REG_WR2    0x0254
  43 #define MPMC_REG_TN2    0x0258
  44 #define MPMC_REG_SC3    0x0260
  45
  46 /* Control register bits */
  47 #define MPMC_CTRL_AM            ( 1 << 1 )      /* Address Mirror */
  48 #define MPMC_CTRL_LPM           ( 1 << 2 )      /* Low Power Mode */
  49 #define MPMC_CTRL_DWB           ( 1 << 3 )      /* Drain Write Buffers */
  50
  51 /* Status register bits */
  52 #define MPMC_STATUS_BUSY        ( 1 << 0 )      /* Busy */
  53 #define MPMC_STATUS_WBS         ( 1 << 1 )      /* Write Buffer Status */
  54 #define MPMC_STATUS_SRA         ( 1 << 2 )      /* Self-Refresh Acknowledge*/
  55
  56 /* Dynamic Control register bits */
  57 #define MPMC_DC_CE              ( 1 << 0 )
  58 #define MPMC_DC_DMC             ( 1 << 1 )
  59 #define MPMC_DC_SRR             ( 1 << 2 )
  60 #define MPMC_DC_SI_SHIFT        7
  61 #define MPMC_DC_SI_MASK         ( 3 << 7 )
  62 #define MPMC_DC_SI_NORMAL       ( 0 << 7 )
  63 #define MPMC_DC_SI_MODE         ( 1 << 7 )
  64 #define MPMC_DC_SI_PALL         ( 2 << 7 )
  65 #define MPMC_DC_SI_NOP          ( 3 << 7 )
  66
  67 #define SRAM_REG_CONF   0x00
  68 #define SRAM_REG_WWE    0x04
  69 #define SRAM_REG_WOE    0x08
  70 #define SRAM_REG_WRD    0x0C
  71 #define SRAM_REG_WPG    0x10
  72 #define SRAM_REG_WWR    0x14
  73 #define SRAM_REG_WTR    0x18
  74
  75 /* Dynamic Configuration register bits */
  76 #define DC_BE           (1 << 19) /* buffer enable */
  77 #define DC_RW_SHIFT     28      /* shift for number of rows */
  78 #define DC_RW_MASK      0x03
  79 #define DC_NB_SHIFT     26      /* shift for number of banks */
  80 #define DC_NB_MASK      0x01
  81 #define DC_CW_SHIFT     22      /* shift for number of columns */
  82 #define DC_CW_MASK      0x07
  83 #define DC_DW_SHIFT     7       /* shift for device width */
  84 #define DC_DW_MASK      0x03
  85
  86 /* Static Configuration register bits */
  87 #define SC_MW_MASK      0x03    /* memory width mask */
  88 #define SC_MW_8         0x00    /* 8 bit memory width */
  89 #define SC_MW_16        0x01    /* 16 bit memory width */
  90 #define SC_MW_32        0x02    /* 32 bit memory width */
  91
  92 #endif /* _MACH_ADM5120_MPMC_H */